Safe Laxative for TTC

Holly • 31 year old lover of Jesus and wife of man. Baby #5,due 7/19
I have had a problem with going for a few years now. I always turn to laxatives when Im too stopped up. I just wanted to know what is a great option for relief. I was using the cheap overnight ones,but I recently started using Milk of Magnesium which is working ok. I read its safer than the others. Im just worried that the laxatives are going to hinder ttc.